package com.example.myapplication8;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.support.annotation.Nullable;
import android.widget.Toast;

public class MyDatabaseHelper extends SQLiteOpenHelper {

    private Context mContext;

    private static final String CREATE_BOOK = "create table Book(" + "id integer primary key autoincrement,"  +
            "autor text,price real,pages integere,name text,category_id integer" + ")";
    private static final String CREATE_CATEGORY = "create table Category(" + "id integer primary key autoincrement,"  +
            "category_name text,category_code integer" + ")";
    public MyDatabaseHelper(@Nullable Context context, @Nullable String name, @Nullable SQLiteDatabase.CursorFactory factory, int version) {
        super(context, name, factory, version);
        mContext = context;
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(CREATE_BOOK);
        db.execSQL(CREATE_CATEGORY);
        Toast.makeText(mContext, "Create succeeded", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("drop table if exists Book");
        db.execSQL("drop table if exists Category");
        onCreate(db);
    }
}
